Bond

[1] A state of adhesion.
[2] The act of connecting two components by means of a glue or adhesive or to cause them to adhere
[3] The junction of the weld metal and the base metal
[4] The grip exerted by one material on another.
[5] The attachment between two surfaces that have been joined.
[6] The adhesion between concrete and its reinforcing steel, due partly to the shrinkage of the concrete in setting and partly to the natural adhesion between the surface particles of steel and concrete.
See also mechanical bond
[7] Link between atoms, considered to be electrical and arising from the distribution of electrons around the nuclei of bonded atoms. See also chemical bond